Currently all interrupts generated by cxl are named "cxl". This is not very
informative as we can't distinguish between cards, AFUs, error interrupts, user
contexts and user interrupts numbers. Being able to distinguish them is useful
for setting affinity.
This patch gives each of these names in /proc/interrupts.
A two card CAPI system, with afu0.0 having 2 active contexts each with 4 user
IRQs each, will now look like this:
% grep cxl /proc/interrupts
444: 0 OPAL ICS 141312 Level cxl-card1-err
445: 0 OPAL ICS 141313 Level cxl-afu1.0-err
446: 0 OPAL ICS 141314 Level cxl-afu1.0
462: 0 OPAL ICS 2052 Level cxl-afu0.0-pe0-1
463: 75517 OPAL ICS 2053 Level cxl-afu0.0-pe0-2
468: 0 OPAL ICS 2054 Level cxl-afu0.0-pe0-3
469: 0 OPAL ICS 2055 Level cxl-afu0.0-pe0-4
470: 0 OPAL ICS 2056 Level cxl-afu0.0-pe1-1
471: 75506 OPAL ICS 2057 Level cxl-afu0.0-pe1-2
472: 0 OPAL ICS 2058 Level cxl-afu0.0-pe1-3
473: 0 OPAL ICS 2059 Level cxl-afu0.0-pe1-4
502: 1066 OPAL ICS 2050 Level cxl-afu0.0
514: 0 OPAL ICS 2048 Level cxl-card0-err
515: 0 OPAL ICS 2049 Level cxl-afu0.0-err
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
80fa93fce3